Yes, I'm pretty sure most everyone will agree that bigger is better on a wet sump pan. The only trick is making sure that you have an actual sump for the oil to collect in at the bottom of the big pan.

I'm not sure if kickouts work on Mopar big block engines since the skirt is 3 inches deep. There are people who window the block to get a kickout and maybe that works for them. It certainly takes a bunch of time and money to do it.

For a wet sump dyno pan I usually run the sump about 12 inches deep like the one in this picture.